Rotary brush



M. L. SMITH.

ROTARY BRUSH. t

l APPLICATION FILED OCT. 2| IIQI'B- 1,369,567. Patented Feb.'22,f1921.

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MOI/M (H NI. L. SMITH.

ROTARY BRUSH.

APPLICATIONHLED ocT. 2l 191s.

1,369,567. Patented Feb. 22,1921.

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normar BRUSH.

vSp'usiiiea.,tionrgol! Letters Patent. Patented Feb, 22, '1921.

Application led October 2, 1918. Serial No. 256,548.

To all whom t may col/wem.

Be it known thatl I, MORTIMER L. SMITH, a citizen of the United States, residing at Portland, in the county of Multomah and State of Oregon, have invented certain new and useful Improvements in Rotary Brushes, of which the following is a specification.

This invention relates to a brush of theA a motor and a rotype embodying a casing be driven by the in the form,`proportion, and minor details of construction may be resorted to without departing from the nature of the invention as claimed hereinafter.

Referring to the drawings tached, 7

Figure 1 is a View in elevation of a rotary brush embodying the invention.

ig. 2 is a horizontal section on the line 2-2 of Fig. 1.

'Fig 3 is an underside view a portionl gbeing broken away on the line 3--3 of Fig. 1. y

i 4 is a vertical longitudinal section on the line 4 4 of-Fig. 2.

Fig.- 5 is a top plan view of the lower section ofthe caslng with the brush therein, the shaft being in section.

Fig. .6 is a transverse section of the brush showing a portion of the shaft to which the brush is attached.

Corresponding andlike parts are referred to in the following description andlindicated in the several views of the drawings by like reference characters.

The device comprises a rota brush, a motor therefor and a casing. he brush and motor are suitably incased and the lat; ter is provided with a handle for convenience of manipulation. The brush is indicated enerally at A and comprises a body or back 1 and tufts 2. The body or back 1 may be of any material and size and is usuhereto at.-`

ally of circular formation preferably disk I shaped and the tufts 2 of brush material are l secured thereto in an desired way. In the present instance the back or body 1 of the brush is covered by means of a jacket 3 preferably of metal. jacket 3, if employed, are preferably penetrated by numerous small ducts 4, which admit passage therethrough of a portion of the spent fluid which is rimarily employed for driving the motor. .he size and specific structure of the brush are unimportant with- 1n the purview of the invention and will depend largely upon the eciic purpose for which the evice is inten ed.

The motor preferably consists of a wheel 5 having bladesor wings radiating from a hub and is connected with the brush so as to impart a rotary movement thereto. The motor wheel 5 is, -1n lthe form of the embodiment of my invention illustrated, secured to the upper end of a shaft 6 and the brush A is securedl to the lower end of the shaft. Likewise, as indicated most clearly in Fig. 6, the lower end of the shaft 6 lis reduced and threaded to receive a nut 7 by means of which the brush is held to the shaft in a manner to admit of the brush being readily removed, and replaced, as for cleaning or formed in registering lugs projecting outwardlyfrom the respectlve sections. The section 8 is provided with a plurality of lugs 11, and the section 9 has a `correspondin number of lugs 12. The upper section 8 1s closed at the top by means of a cover 13 which is formed with oifstandinglugs 14. The several lugs 11, 12 and 14 are in coincident position to receive the fastenings 10. Gaskets 15 of suitable packing material are interposed between the cover 13 and the sec-v tion 8 and between the two sections Sand 9 in order to maintain close joints. The section 8 and its cover 13 afford a complete closure for the motor wheel 5 with its blades, provision being made for discharge of s ent motive fluid as through an opening 1 in 6ol The body 1 and its the bottom of said section. -The shaft 6,. A mounted in suitable journal bearings in the cover 13 and in the bottom of section 8 .and being operatively spaced to accommodate the wheel 5, projects through the bottom of the section 8 a sufficient distance into the section 9 to afford accommodation therein for the disk shaped body 1,-of the brush,

. which, in practice, is circumferentially inclosed by the side wall of the section 9. The dis osition of the body 1 within the casing de nes between its perimeter and the inclosing wall of the casing'an annular crevice through which, in passin out of the casing,

the s ent motive fluid is ormed into a sheet brush to defiectthe fluid medium against the casing the tufts-2 of said body are made to' tufts of the brush with the effect of a nozzle. The opening 17 in the bottom of the section 8 provides an escape for the water or other Huid medium employed as an agent for propelling the motor. Provision is. made for delivery of a motive fluid, preferably water, to the interior of section 8 against the blades of the motor wheel 5 for imparting rotation to said wheel. A passage 19 in a cou ling extension 18 provided for section 8 a ords suitable and convenient means for such dellvery. The delivery end ofthe passage 19 is deflected as indicated most clearly in Fig. 2 s o as to direct the-jet approximately at a ltangent to the motor wheel, whereby the impact against the blades or wings is utilized to the best possible advantage for driving the motor.

A handle 20 is adapted to be coupled in any'manner tothe extension V18, and may be of any length and construction bestsuited to the part1cular use forlwhich the brush is intended. A flexible tube 21 is connected With-the handle 20 and is adapted to be cou led toa source of supply of the motive me ium whereby the brush is driven. It is preferred to utilize water as the motive medium, hence the tube 21vis adapted to be coupled to the outlet of a service pipe in Aany .well known manner. It is an important I-object of my invention to provide means for utilization to advantage of the water as a detergent-liquid after it has spent its force in driving the motor. To this end the inturned edge 16 imparts a constricted or nozzle-like discharge o ening to the casing, and 1s designed and adapted to effect the dischar e of the water into the tufts of the brus The inturned edge 16 is also dis` posed beyond the body 1 and about the tufts of the brush, as shown in Fi 4 of the drawings. In consequence of4 t e relative shape and disposition ofthe body 1 and its revolve at all times in service in the midst of a constant and abundant flow o f water dischargedinl a sheet'conver'gingl toward the axis about which the body 1 revolves and without any obstruction thereto on the part of said body.

In this connection itvmay be observed with general reference to the foregoing specification, where, for example, the sectlon 8 is rey ferred to as being located above the section 9 and as being provided with atop 13, that such language is intended for convenient brevity only to4 apply to such relative disosition of the device as is illustrated in 1igs. 1 and 4. In point of fact the device may be used upside down or in any mode of application desired. l Y

he preferred construction of two sections V8 and 9 made separable by aid of their lugs 11 and .12 land bolts 10, is employed in order to provide for convenient removal and replacement' of the brush A, which b reason of the constriction at 16 of the wa l of the section 9, is confined therein so long as the sections 8 and 9 are united. y

It is to be understood that the invention provides an article which may be used for a variety of purposes, and which materially reduces the labor because of the automatic operation of the brush due to the'rotary movement imparted thereto. It is to be understood thatl air under fpressure may beutilized as the fluid means brush, and in this case the air escaping carries ofl dust that may be dislodged by the brush. When water is the o erwtin dium, the brush may be used or scru bing purposes, the water after expendi 1n driving the brush being utihzed asv 4a washing agent` in the manner well undertootlll. It may be used as a bath and a tooth rus vThe foregoing description and the draw# `1. A brush comprising a substantially cylindrical vcasing having an inwardly defleeting discharge end, a fluid motor wheel mounted within the casing, and a rotatable brush comprising a disk-shaped body operatively disposed wirthin the casing and con-v nected with the iuidl motor wheel, and hav- `ing tufts projecting through and extendig beyond the'discharge end of the casing,

r operating the its force inwardly deiected open end of the sai casing extending beyond the said body of Athe 18o brush and arranged to direct spent iuid after leaving the motor wheel in an annular sheet against the said tufts.

2. A brush comprising in combination with a rotatable, disk-shaped brush body having a' concave back and provided with tufts projecting from the opposite side thereof, said body being also provided With a plurality of openings extending from the concave back to the tufts, of a fluid motor connected with the brush, means for supplying'` motive fluid to said motor, means for discharging the spent motive uid against the concave back of the brush body, and a casin at an angle to the same.

`In testimony whereof I ax my signature 20 in presence of two witnesses.

MORTIMER L. SMITH.

Witnesses:

A. J. HOLLINGWORTH, F. A. DEANE. 

